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The 'Eastern tiger swallowtail', '''Papilio glaucus''', is a large (12 cm wingspan) swallowtail butterfly. It is found in the Eastern United States, as far north as southern Vermont, and as far West as extreme Eastern Colorado. It flies from spring through fall, and most of the year in the southern portions of its range, where it may produce two or three broods a year.
Adult males are yellow, with four black "tiger stripes" on each fore wing. The trailing edges of the fore and hind wings are black which is broken with yellow spots. On the medial margin of the hind wing next to the abdomen there are small red and blue spots.
There are two morphs of adult females, a yellow and a dark one. The yellow morph is similar to the male, except that the hind wings have an area of blue between the black margin and the main yellow area. In the dark morph, most of the yellows area are replaced with a dark gray. A shadow of the "tiger stripes" can still be seen on the dark females. The dark form is more common in the Southern portions of the range, especially in areas also inhabited by the pipevine swallowtail, which it seems to mimic.
Female lays spherical green eggs on the top of leaves of host plants. After hatching, the caterpillars often eat the shell of their egg. The first instars are dark and mimic bird droppings. The larvae eat the leaves of a wide variety of trees and shrubs, including cottonwood, tulip tree, sweet bay, and cherry. Adults are strictly diurnal; they start to fly towards noon and by and by return to rest throughout the afternoon (Fullard & Napoleone 2001).
It is the state butterfly of Georgia, Virginia, Alabama, South Carolina and Delaware.
★ Two-tailed Swallowtail
★ Western Tiger Swallowtail
★ (2003): ''Butterflies of North America''. Houghton Mifflin Co., New York
★ (2001): Diel flight periodicity and the evolution of auditory defences in the Macrolepidoptera. ''Animal Behaviour'' '62'(2): 349–368. PDF fulltext
★ Eastern Tiger Swallowtail: Butterflies of North Carolina
★ Eastern Tiger Swallowtail: Diagnostic photographs Cirrus Digital Imaging
★ Eastern Tiger Swallowtail: black female form diagnostic photographs Cirrus Digital Imaging
★ USGS treatment
The 'Eastern tiger swallowtail', '''Papilio glaucus''', is a large (12 cm wingspan) swallowtail butterfly. It is found in the Eastern United States, as far north as southern Vermont, and as far West as extreme Eastern Colorado. It flies from spring through fall, and most of the year in the southern portions of its range, where it may produce two or three broods a year.
Adult males are yellow, with four black "tiger stripes" on each fore wing. The trailing edges of the fore and hind wings are black which is broken with yellow spots. On the medial margin of the hind wing next to the abdomen there are small red and blue spots.
There are two morphs of adult females, a yellow and a dark one. The yellow morph is similar to the male, except that the hind wings have an area of blue between the black margin and the main yellow area. In the dark morph, most of the yellows area are replaced with a dark gray. A shadow of the "tiger stripes" can still be seen on the dark females. The dark form is more common in the Southern portions of the range, especially in areas also inhabited by the pipevine swallowtail, which it seems to mimic.
Female lays spherical green eggs on the top of leaves of host plants. After hatching, the caterpillars often eat the shell of their egg. The first instars are dark and mimic bird droppings. The larvae eat the leaves of a wide variety of trees and shrubs, including cottonwood, tulip tree, sweet bay, and cherry. Adults are strictly diurnal; they start to fly towards noon and by and by return to rest throughout the afternoon (Fullard & Napoleone 2001).
It is the state butterfly of Georgia, Virginia, Alabama, South Carolina and Delaware.
| Contents |
| Image gallery |
| See also |
| References |
| External links |
Image gallery
See also
★ Two-tailed Swallowtail
★ Western Tiger Swallowtail
References
★ (2003): ''Butterflies of North America''. Houghton Mifflin Co., New York
★ (2001): Diel flight periodicity and the evolution of auditory defences in the Macrolepidoptera. ''Animal Behaviour'' '62'(2): 349–368. PDF fulltext
External links
★ Eastern Tiger Swallowtail: Butterflies of North Carolina
★ Eastern Tiger Swallowtail: Diagnostic photographs Cirrus Digital Imaging
★ Eastern Tiger Swallowtail: black female form diagnostic photographs Cirrus Digital Imaging
★ USGS treatment
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